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231625404130 = 2531747178723
BaseRepresentation
bin1101011110110111110…
…0110010111011100010
3211010212101001200011111
43113231330302323202
512243332100413010
6254223544133534
722506615310261
oct3275574627342
9733771050144
10231625404130
118a26055842a
1238a82a672aa
1318ac4373163
14b2d43545d8
156059b1958a
hex35edf32ee2

231625404130 has 16 divisors (see below), whose sum is σ = 430374945024. Its totient is φ = 89661446640.

The previous prime is 231625404119. The next prime is 231625404149. The reversal of 231625404130 is 31404526132.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 231625404092 and 231625404101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373589052 + ... + 373589671.

It is an arithmetic number, because the mean of its divisors is an integer number (26898434064).

Almost surely, 2231625404130 is an apocalyptic number.

231625404130 is a deficient number, since it is larger than the sum of its proper divisors (198749540894).

231625404130 is a wasteful number, since it uses less digits than its factorization.

231625404130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747178761.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 231625404130 in words is "two hundred thirty-one billion, six hundred twenty-five million, four hundred four thousand, one hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 747178723 1494357446 3735893615 7471787230 23162540413 46325080826 115812702065 231625404130